Electric transmission of intelligence.



I -I. K-ITSEE.

ELECTRIC TRANSMISSION OF INTELLIGENCE. APPLICATION FILED APR. I1, 1908 RENEWED JUL! 8, H313.

1,083,258; Patented D'ec.30, 1913. I I I a supra-Sunni.

I. KITSEE.

' ELEO'IRIO TRANSMISSION or INTELLIGENUE, APPLICATION FILED APR-11, 1908. RENEWED JULY 8, 1913- 1,083,258, Patented Dec. 30, 1913.

a mums-sum 2.

UNITED STATES PATENT OFFICE.

ISIDOR .KITSEE, 0F PHILADELPHIA, PENNSYLVANIA, AssIGNon, Y. DIRECT AND MESNE ass cnmnnrs, 'to AMERICAN TELEPHONE Am) zrnnncnnrn coMPANY, OF NEW YORK, N. Y., A conronn'rron or NEW YORK.

ELECTRIC TRANSMISSION INTELLIGENCE.

To all whom it may concern Be it known that I, Ismon Krrsns, citizen of the United States, residing at Philadelp'hia, in :the county Specification of l iettersiatent. Application and April 11, iaos, Serial No. 426,493. Renewed July of Philadelphia and State oat lennsylxnnia, haveinvcnted oertaln new and useful Improvements in Elec; trlc TI'ZIIISIIIISSIOII' of Intcll1gence,-of which;

the following is a specification.

in aid of electric energy.

the transmission of intelligence with thc In general, my invention comprises the; construction and use of such a line that the effects of induction are utilized for the: transmission of intelligence and it has more: special reference to the construction of such a circuit and assembling of a series ofcircuits in a cable.

two conductors insulated from each other} but in inductive relation to each other, are.

connected to the ground, they are subject to induction from -a neighboring circuit no matter if this neighboring circuit is -mctal- 'lically or inductively arranged. It wasalso ascertained by me, that ,a' .circuit consisting of'three conductors inductively connected to each other, so as to produce one open circuit, is immune from all disturbances of neighboring circuits. In the course of experiments covering a number of years, I made use of circuits having a lineal length of over one hundred miles, these circuits being inductively connected and I" found then,.

m the course of these experiments-abut the best arrangement to produce an immunelcirw cult is to first arrange two insulated con-- ductors in intimate inductive relation to each other, and then cover botlr conductors with one metallic braiding; but 'as in my experiments, the insulation of the conductors proper-when the same was not of great thicknesswas easily abrased, I found it necessary to first inclose the conductors in a tube of non-conducting material and then cover-this tube with a braiding of conducting material. In the'assembling of such a circuit, that is, a circuit consisting of two insulated wires contained in a .no11-conduct ing envelop and then surrounded by a conducting braiding1nto a cable and more.

specially into a submarine cableI have recourse to an arrangement substantlally as is illustrated in the accompanymgdrawmg.

. in a non-conducting envelop and My invention relates to an improvement 1ng. Fig. 5 is a similar view of Patented Dec. 30, 1913. $8, .1913. .$e1',ia.l ,-1 Io.'.777,960.

Ln tlris drawing, Figure l is a plan View of a circuit consisting of two conductors insulated from each other but ini-ntimatetwist with each other. il lig. 2 is a plan View of a circuit comprising ltWO conductors and a conducting envelop tor same. Fig. 3 is a sixn ilar-viewof the :twoconductors contained surrounded by .a conducting braiding. Fig. 4 isa partial plan and partial diagrammatic view of two circuits, one circuit connected inductively to telephonic stations and the second of said circuits connected inductively to telegraphic stations; the circuits being grounded through their conductin braid ibur circuits. Fig. '6 is a plan View of part of a V submarine cable comprising five circuits. In my experiments, I have-fonnd that if Fig. [is a partial plan and partial diagrammatic view of a submarine cable comprising five circuits, of which two circuits are comnected for :the purpose of transmitting intelligence.

It has to be borne in mind that to-day it is only possible-to inclose one circuit in a submarine cable for the practical operation of 'telegraphy. It was attempted to place. two

circuits for short submarine cables, but this attempt had to be abandoned on account of cross-induction.

With my invention, it is possible to assemble a series of circuits into one subma- 'rine cable, nomatter if the same is of shorter or greater length and to telegraph or telephone over same-for each circuit sepa- .-ratelywithout any interference between said circuits. I

In the drawings, 1 and 2 are the two. conductors ofwhat I call-the inductive circuit.

3, 3, are the insulation for each of said conductors.

4 is the metallicfbraiding.

5 is the non-conductingenvelop between the braiding and the circuit. 7

6 is the transmitting organism and 7 the mission.

receiving organism for telegraphic trans- 8 and 9 are telephonic stations, each station comprising transmitting and receiving devices.

10 and 10 are the ground connections for the conducting braiding.

In Figs. 6 and 7, 11 is a conducting'sheet surrounding the braidings of a series of circuits. 12 is the iron armor comprising a series of iron conductors insulated through the non-conducting material 13.

,I have to state that in my experiments, I made use of different means to produce the metallic envelop for the circuit proper, but I found that, in practice, none is as efiicient and economical as a braiding consisting of sheet, but I found such circuit wanting of the necessary strength and too cumbersome for practical purposes,

In the manufacturing of submarine cables, I prefer the outer armor to be braided so as to form interstices for the purpose of allow ing the surrounding water to come in contact with the metallic shield.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. A submarine cable comprising a series of electric circuits, each of said circuits consistingof three conductors insulated from each other, two of said conductors connected inductively to each other and conductively to the third conductor, said third conductor consisting of a metallic braiding surrounding said first two named conductors, necessary apparatus between the first named conductors and the third conductor; a solid conducting shield surrounding said metallic braiding and a protective armor surrounding said solid conducting shield.

52. In a submarine cable, a series of inductive circuits, means to make immune one circuit from the inductive influence of the second circuits, said means comprising for each of said circuits a third conductor consisting of a metallic envelop surrounding said circuit; one end of one conductor of said circuit in electric connection, with the interposition of necessary devices, to said metallic envelop; the other end of said conductor being left unconnected; the opposite end of the second conductor being connected to said metallic envelop with the interposition of necessary devices and the second end of said conductor being left free and unconnected; a metallic sheet enveloping all of said circuits, said metallic sheet adapted to be brought in contact with the surrounding Water.

3. A submarine cable comprising a series of inductive circuits consisting each of two inductively related conductors and a third conductor as a return, said third conductor enveloping the first named two conductors; the third conductors of all of the circuits in electric connection with each other; a metallic shield for all of said conductors and means'to bring said metallic shield in contact with the surrounding water.

4. An electriccable comprising a series of lines of transmission, each lineof transmission comprising three conductors, two conductors in the shape of wires and menlated from each other and the third conductor in the shape'of a metallic braiding surrounding tlre first two named conductors and insulated from same, in combination with a metallic shield surrounding the braidings of all circuits.

In testimony whereof in presence 0 two witnesses.

' ISIDOR KITSEE.

Witnesses a EDITH R. STILLEY, MARY C. SMITH.

I aflix my signature 

